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nl80211: NULL pointer check for link before use

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bss->flink could be NULL when wpa_driver_nl80211_del_beacon() is called
if wpa_driver_nl80211_drv_init() fails early through the 'failed' label
and jumps to wpa_driver_nl80211_deinit() with bss->flink unset.

Fixes: 47269be36e ("nl80211: Refactor i802_bss to support multiple links")
Signed-off-by: Jintao Lin <jintaolin@chromium.org>
This commit is contained in:
Jintao Lin 2024-08-09 18:10:34 +00:00 committed by Jouni Malinen
parent 3e2758b19a
commit 015f6a5a0c
1 changed files with 1 additions and 1 deletions
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2
src/drivers/driver_nl80211.c
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@ -3083,7 +3083,7 @@ static int wpa_driver_nl80211_del_beacon(struct i802_bss *bss,
struct wpa_driver_nl80211_data *drv = bss->drv; struct wpa_driver_nl80211_data *drv = bss->drv;
struct i802_link *link = nl80211_get_link(bss, link_id); struct i802_link *link = nl80211_get_link(bss, link_id);
if (!link->beacon_set) if (!link || !link->beacon_set)
return 0; return 0;
wpa_printf(MSG_DEBUG, "nl80211: Remove beacon (ifindex=%d)", wpa_printf(MSG_DEBUG, "nl80211: Remove beacon (ifindex=%d)",